deepspeedai / deepspeedai/DeepSpeed
When using zero stage 3 for model training, loading custom parameters failed and the model parameter size was 0.
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Description
When I use zero stage 3, I want to load the model and then load some customized parameters. However, after loading the model, the size of the model parameters is 0. When using the safe_get_full_fp32_param method, it is displayed that the current parameters do not have _z3_optimizer. What should I do? How to solve this problem?
Thanks
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the zero stage 3 training flow that loads a model and then customized parameters. Trace the parameters involved in safe_get_full_fp32_param and the expected _z3_optimizer state; the issue is resolved when the cause of the zero parameter size is identified and a verified fix or guidance is provided.
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Assessment
- Tech stack
- python, pytorch
- Domain
- distributed-systems, machine-learning
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 20/100